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Conceptual design of a wide-field near UV transient survey in a 6U CubeSat
Author(s): Yoichi Yatsu; Toshiki Ozawa; Kenichi Sasaki; Hideo Mamiya; Nobuyuki Kawai; Yuhei Kikuya; Masanori Matsushita; Saburo Matunaga; Shouleh Nikzad; Pavaman Bilgi; Shrinivas R. Kulkarni; Nozomu Tominaga; Masaomi Tanaka; Tomoki Morokuma; Norihide Takeyama; Akito Enokuchi
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Paper Abstract

A conceptual design of a wide-field near UV transient survey in a 6U CubeSat is presented. Ultraviolet is one of the frontier in the transient astronomy. To open up the discovery region, we are developing a 6U CubeSat for transient exploration. The possible targets will be supernova shock-breakouts, tidal disruption events, and the blue emission from NS-NS mergers in very early phase. If we only focused on nearby/bright sources, the required detection limit is around 20 mag (AB). To avoid the background and optical light, we chose a waveband of 230-280 nm. As an imaging detector, we employ a delta-doped back-illuminated CMOS. In addition to delta doping, the multi-layer coating directly deposited on the detector enables both a high in-band UV QE and the ultra-low optical rejection ratio. Taking into account these specifications, even an 8 cm telescope can achieve the detection limit of 20 magAB. The expected FoV is larger than 60 deg2 .

Paper Details

Date Published: 6 July 2018
PDF: 12 pages
Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106990D (6 July 2018); doi: 10.1117/12.2313026
Show Author Affiliations
Yoichi Yatsu, Tokyo Institute of Technology (Japan)
Toshiki Ozawa, Tokyo Institute of Technology (Japan)
Kenichi Sasaki, Tokyo Institute of Technology (Japan)
Hideo Mamiya, Tokyo Institute of Technology (Japan)
Nobuyuki Kawai, Tokyo Institute of Technology (Japan)
Yuhei Kikuya, Tokyo Institute of Technology (Japan)
Masanori Matsushita, Tokyo Institute of Technology (Japan)
Saburo Matunaga, Tokyo Institute of Technology (Japan)
Shouleh Nikzad, Jet Propulsion Lab. (United States)
Pavaman Bilgi, California Institute of Technology (United States)
Shrinivas R. Kulkarni, California Institute of Technology (United States)
Nozomu Tominaga, Konan Univ. (Japan)
Masaomi Tanaka, National Astronomical Observatory of Japan (Japan)
Tomoki Morokuma, The Univ. of Tokyo (Japan)
Norihide Takeyama, Genesia Corp. (Japan)
Akito Enokuchi, Genesia Corp. (Japan)

Published in SPIE Proceedings Vol. 10699:
Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray
Jan-Willem A. den Herder; Shouleh Nikzad; Kazuhiro Nakazawa, Editor(s)

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